Plâs Dinam

Plâs Dinam is a red brick and greywacke rubble house with limestone dressings, timber framing, and silvery-grey slate hanging, built around a large medievalising hall positioned on the north side. The plan places withdrawing rooms to the west, domestic arrangements to the east, and ancillary accommodation in a linking west wing.

The main entrance faces north, approached through a timber-framed storied porch with infill panels and a passageway leading to the main stair. A Gothic pointed door is recessed beneath a limestone ashlar porch with moulded low arch dying into the chamfered cheeks. Inscriptions carved on each side read "PAX INTRANTIBUS" and "SALUS EXEUNTIBUS". Flanking columns support shaped timber brackets for the deeply jettied first floor, which has a moulded and brattished bressumer. A large mullioned and transomed window lights the upper chamber, above which sits a jettied second floor with a 3-light moulded window and deeply projecting gable with carved bargeboards. A tall ribbed brick chimney is attached to the west wall. This entrance block is indebted to Shaw's Leyswood.

The great hall to the right features stone mullioned windows with a square dais bay lit by triple transoms and a lead cornice forming an oriel. The leadwork displays sunflowers and pies characteristic of the Domestic Revival movement. Above are canted and hipped dormers similar to those Nesfield later employed at Gwernyfed Park. The kitchen and service rooms are independently gabled with similarly dressed stone windows to the ground floor. The kitchen is single storey with a lead and timber roof ventilator and pyramidal spirelet, with timber cross windows above the first bay. A further gabled bay beyond the hall oriel contains timber windows, with the corner restored following removal of twentieth-century extensions.

The west front is of less significance, featuring two 3-storey gables with a canted stone mullioned bay window to the small withdrawing room on the right.

The south front has slate hanging above the ground floor with moulded timber mullioned and transomed windows. To the east stands a canted bay with a railed roof walk beneath a gable, followed by further smaller gables in a jettied block and a stair tower at the corner with the service wing.

The rear elevation presents a picturesque medley of gables, brick stacks, and irregularly placed windows unified by the consistent use of materials.

The main medievalising hall rises 1½ storeys, its ceiling divided by moulded plaster ribs into nine compartments with coving down to the chimney breast. Nineteenth-century wall panelling surrounds a lateral fireplace bearing the date, the Crewe arms, and monogram initials; the Davies arms and initials were subsequently added. The drawing room to the west, accessed through the hall, was altered by the addition and subsequent demolition of extensions. Its fireplace displays glazed tiles embossed with various ships, a family symbol. The dining room behind the hall retains seventeenth-century panelling probably from Llandinam Hall, and a moulded fire beam sourced from Pertheirin, a timber-framed house in Caersws. The small library in the southwest corner preserves its original fittings.